sidebar_label |
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EventEmitter.once |
Like on
but the listener will only be fired once and then it will be removed.
class EventEmitter {
once<Key extends keyof EventsWithWildcard<Events>>(
type: Key,
handler: Handler<EventsWithWildcard<Events>[Key]>
): this;
}
Parameter |
Type |
Description |
---|---|---|
type |
Key |
the event you'd like to listen to |
handler |
Handler<EventsWithWildcard<Events>[Key]> |
the handler function to run when the event occurs |
this
this
to enable you to chain method calls.